Cytomegalovirus: Introduction, symptoms and treatment

Learn about Cytomegalovirus (CMV), introduction, symptoms, and treatment options for this common virus. Cytomegalovirus (CMV) is a herpes virus. Infection can cause flu-like symptoms, although it is often symptomless. In people with weakened immune systems, it can reactivate and affect the eyes, lungs, liver, and other organs. It can pass on to a fetus during pregnancy, which can lead to complications.